Issue 3, 2013
From the journal:

New Journal of Chemistry

Thermally stable azobenzenedyes through hybridization with POSS†

Hong Chi,ab   Khine Yi Mya,b   Tingting Lin,b   Chaobin He,b   FuKe Wang*ab  and  Wee Shong Chin*ab  

* Corresponding authors

a Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, Singapore
E-mail: chmcws@nus.edu.sg

b Synthesis and Integration, Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore, Singapore
E-mail: wangf@imre.a-star.edu.sg

Abstract

Azobenzene (AB) dyes have been widely applied in organic devices owing to their interesting photo-isomerization properties. Their application for higher temperature usage is limited, however, due to their intrinsically poor thermal stability. Here we show a facile way to significantly enhance the thermal stability of azobenzene dyes without perceptibly affecting their photophysical properties. Through coupling with inorganic core structured polyhedral oligomeric silsesquioxanes (POSS), the obtained hybrid POSS–AB exhibited significant enhancement of thermal stability with decomposition temperature up to 350 °C, about 177.4 °C increase in Td compared to free azobenzene. Application of the hybrid as photo-switching polymer nanocomposites thin film was demonstrated. The interesting self-assembly properties of POSS–AB will also be discussed in this paper.

Graphical abstract: Thermally stable azobenzene dyes through hybridization with POSS

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Article information

DOI
https://doi.org/10.1039/C2NJ40977A
Article type
Paper
Submitted
29 Oct 2012
Accepted
12 Dec 2012
First published
08 Jan 2013

New J. Chem., 2013,37, 735-742

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Thermally stable azobenzene dyes through hybridization with POSS

H. Chi, K. Y. Mya, T. Lin, C. He, F. Wang and W. S. Chin, New J. Chem., 2013, 37, 735 DOI: 10.1039/C2NJ40977A

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